CONCENTRIC ELECTRODE AND METHOD FOR MANUFACTURING CONCENTRIC ELECTRODE

The concentric electrode device according to the invention is adapted for using as a medical diagnostic measuring electrode. Together with the electrolyte present in the tissues, the device forms a galvanic cell. The electrode device (100) comprises a tube (110) made of a first electrically conductive material; an inner electrode (120) made of a second electrically conductive material and inserted into the tube (110) at one end (112) of the tube (110); a wire (130) connected to the other end (114) of the tube (110), said wire constituting an electric output terminal; and a hollow outer electrode (140) made of a third electrically conductive material. The tube (110) holding the inner electrode (120) is arranged inside the outer electrode (140) in an insulated and concentric manner. The inner electrode (120) is electrically connected along its lateral surface to the inner surface of the tube (110), and said tube (110) is also electrically connected to the output terminal wire (130). The inner electrode (120) is inserted in the tube (110) in the form of a solid body and secured mechanically therein so that at least a part of its lateral surface is directly and electrically connected to the inner surface of the tube (110). The method according to the invention relates to a method of producing such an electrode device.